Donald Trump and a Highland Beach development delivered a one-two punch to the Palm Beach County Property Appraiser's Office in January, so now the office will be taking them to court.

While Trump was winning a $5.6 million property assessment reduction for his Mar-A-Lago estate in one room, a hearing officer next door was granting a $5.9 million reduction to Hidden Harbor in Highland Beach.

The two decisions cost local governments $233,000 in reduced property taxes.

Assistant Property Appraiser John Beaupre said this week the appraiser's office plans to challenge the reductions given by the county's Value Adjustment Board in Circuit Court.

Although hearing officers for the board granted 778 reductions in 1991 assessments, Beaupre said these are the only court challenges the appraiser's office anticipates because of the dollars involved.

"It's not very good sense to spend $50,000 to get $5,000 back in taxes," Beaupre said. The lawsuits must be filed by April 5.

Trump's representatives succeeded in reducing his 17-acre Palm Beach estate's assessment from $17.6 million to $12 million -- a $118,000 difference in taxes.

The new case marks the second time the appraiser's office will tangle with Trump in court.

Trump sued in 1986 after his property was assessed at $11.5 million only days after he bought it for $7 million. He initially won a Circuit Court ruling, but the 4th District Court of Appeal reversed that decision in 1989.

Hidden Harbor, a proposed development that won a $14.5 million federal court decision against Highland Beach last month, had its assessment reduced from $9.6 million to $3.7 million -- a $115,000 tax break.

Hidden Harbor has been in a decade-long battle with the town over the development of its 24 acres on the west side of State Road A1A, south of Town Hall. The city reduced the number of condominium units the development could build from 620 to 144.

The development belonged to the failed Broadview Savings & Loan and is now in receivership with the Resolution Trust Corp.

After a federal jury handed the company a $31.1 million verdict in March, a federal judge said the town would only have to pay $14.5 million if it allows the developer another five years to build under the original 1980 rules.

Randee Schatz, a lawyer representing the development, said she did not want to comment on the decision by the appraiser's office to sue.